Quick filter

what is the quickest way to set a filter for a folder?
there seems to be several ways (find is too involved, am thinking like the old xtree where you hit F and enter a filespec)

while the desired folder is current i would like to hit a hotkey or a button, enter some wildcards like
*.lbt *.lbx
and how do you enter 2 or more strings as above?
i tried
*.lbt *.lbx
but none of those worked

the help wasn't very helpful about this, it kept talking about the View menu and context menus, but i don't see the references


thank you Leo
knew it had to be there,
Filter Box where have you been all these years ? !

is that installed by default ? seems to me that it should be if it is not